What is the other name of floatable solid?, Scum, Scim, Sludge, Slump, What is the name of raw sewage?, Incoming, Indulgence, Influent, Effluent, What is the first treatment unit sewage flows through in an STP?, Primary Sedimentation Tank, Grit Chamber, Screening (Bar Screen, Aeration Tank, What is the main purpose of a grit chamber?, Remove microorganisms, Remove grease and oil, Remove sand and small inorganic particles, Remove dissolved solids, Which process removes suspended solids by settling?, Aeration, Filtration, Sedimentation, Disinfection, What is the main function of the aeration tank?, Remove large debris, Kill bacteria, Provide oxygen for microorganisms to decompose organic matter, Remove oil and grease, Which microorganism is mainly involved in biological treatment?, Virus, Fungi, Algae, Bacteria, What is BOD used to measure?, Amount of oxygen in water, Total solids, Amount of oxygen needed to decompose organic matter, pH level, Which unit removes oil and grease from wastewater?, Screening, Grease trap / oil separator, Aeration tank, Clarifier, What is sludge?, Clean water, Gas produced, Settled solid waste from treatment process, Dissolved chemicals.

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